Alienware 13 r2 wont boot, with no video. When turning on system from either battery or AC, alienware logo and keyboard lights up, fans turn off, and then all turn off after about a second. This continues until power source is removed (battery cable unplugged or AC adapter unplugged). Tried 2 minutes of power drain, resetting cmos with screwdriver with battery unplugged and plugged in and all sorts of combinations.